TY - GEN
T1 - Linear and nonlinear optical properties of linear and hyperbranched conjugated polymers
AU - Qin, Anjun
AU - Li, Zhen
AU - Lam, Jacky Wing Yip
AU - Tang, Ben Zhong
PY - 2006
Y1 - 2006
N2 - Azo-functionalized hyperbranched polymers 1 and 2, and linear polyacetylene 3 are synthesized by palladium-catalyzed coupling of triiodoarenes with a diethynylazobenzene, and post functionalization, respectively. These polymers are soluble, film-forming, and morphologically stable (T g > 180°C). The poled polymer films of 1 and 2 exhibit high second-harmonic generation coefficients (d 33 up to 177 pm/V), thanks to the chromophore-separation and site-isolation effects of hyperbranched architectural structure of the polymers in the three-dimensional space. The poled film of polymer 3 shows the trade-off of nonlinearity-transparency-orientation thermal stability. The poled films are all orientationally and thermally stable due to the facile cross-linking of the multiple acetylenic triple bonds in the hyperbranched polymer and the rigid backbone in the linear polyacetylene, respectively.
AB - Azo-functionalized hyperbranched polymers 1 and 2, and linear polyacetylene 3 are synthesized by palladium-catalyzed coupling of triiodoarenes with a diethynylazobenzene, and post functionalization, respectively. These polymers are soluble, film-forming, and morphologically stable (T g > 180°C). The poled polymer films of 1 and 2 exhibit high second-harmonic generation coefficients (d 33 up to 177 pm/V), thanks to the chromophore-separation and site-isolation effects of hyperbranched architectural structure of the polymers in the three-dimensional space. The poled film of polymer 3 shows the trade-off of nonlinearity-transparency-orientation thermal stability. The poled films are all orientationally and thermally stable due to the facile cross-linking of the multiple acetylenic triple bonds in the hyperbranched polymer and the rigid backbone in the linear polyacetylene, respectively.
KW - Linear and hyperbranched polymers
KW - Orientation thermal stability
KW - Second-order nonlinear optics
KW - Trade-off
UR - https://www.webofscience.com/wos/woscc/full-record/WOS:000242040400005
UR - https://openalex.org/W2037118915
UR - https://www.scopus.com/pages/publications/33751403820
U2 - 10.1117/12.679423
DO - 10.1117/12.679423
M3 - Conference Paper published in a book
SN - 0819464104
SN - 9780819464101
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Linear and Nonlinear Optics of Organic Materials VI
T2 - Linear and Nonlinear Optics of Organic Materials VI
Y2 - 15 August 2006 through 17 August 2006
ER -